Grants per year
Personal profile
Research Interests
Richard Lueptow's current research interests are in three areas: 1) Modeling, simulation, and experiments on the segregation and mixing of bi-and poly-disperse granular materials, both spherical and non-spherical, in quasi-2D and fully 3D geometries; 2) A dynamical systems approach to mixing by "cutting and shuffling," particularly as applied to granular materials; 3) Molecular level simulation of transport processes in polymeric nanofiltration and reverse osmosis membranes.
Education/Academic qualification
Mechanical Engineering, ScD, Massachusetts Institute of Technology
… → 1986
Mechanical Engineering, SM, Massachusetts Institute of Technology
… → 1980
Engineering, BS, Michigan Technological University
… → 1978
Fingerprint Fingerprint is based on mining the text of the experts' scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.
Couette flow
Physics & Astronomy
Reverse osmosis
Engineering & Materials Science
Granular materials
Engineering & Materials Science
vortices
Physics & Astronomy
axial flow
Physics & Astronomy
granular materials
Physics & Astronomy
Vortex flow
Engineering & Materials Science
reverse osmosis
Physics & Astronomy
Network
Recent external collaboration on country level. Dive into details by clicking on the dots.
Grants 1995 2019
UNS: Controlling mixing and segregation of granular media using unsteady flows
Lueptow, R. M., Ottino, J. M. & Umbanhowar, P.
7/1/15 → 6/30/19
Project: Research project
granular medium
unsteady flow
kinematics
Cutting and Shuffling: A New Dynamical Systems Paradigm for Mixing
Lueptow, R. M., Ottino, J. M. & Umbanhowar, P.
9/1/14 → 8/31/18
Project: Research project
Dynamical systems
Granular materials
Geophysics
Merging
Drug products
REU Supplement for DynSyst_Special_Topics: A Dynamical Systems Approach to Mixing and Segregation of Granular Matter
Lueptow, R. M. & Ottino, J. M.
5/21/13 → 7/31/14
Project: Research project
DynSyst_Special_Topics: A Dynamical Systems Approach to Mixing and Segregation of Granular Matter
Lueptow, R. M. & Ottino, J. M.
8/15/10 → 7/31/14
Project: Research project
IGMS: Coupling and Feedback in the Climate System
Lueptow, R. M. & Silber, M. C.
9/15/09 → 8/31/10
Project: Research project
Research Output 1981 2019
Continuum modeling of granular segregation during hopper discharge
Xiao, H., Fan, Y., Jacob, K. V., Umbanhowar, P., Kodam, M., Koch, J. F. & Lueptow, R. M., Jan 16 2019, In : Chemical Engineering Science. 193, p. 188-204 17 p.Research output: Contribution to journal › Article
Hoppers
Finite difference method
Granular materials
Advection
Kinematics
Asymmetric concentration dependence of segregation fluxes in granular flows
Jones, R. P., Isner, A. B., Xiao, H., Ottino, J. M., Umbanhowar, P. & Lueptow, R. M., Sep 1 2018, In : Physical Review Fluids. 3, 9, 094304.Research output: Contribution to journal › Article
Granular Flow
Segregation
Fluxes
Particle size
Particle Size
Continuum modelling of segregating tridisperse granular chute fow
Deng, Z., Umbanhowar, P., Ottino, J. M. & Lueptow, R. M., Mar 1 2018, In : Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 474, 2211, 20170384.Research output: Contribution to journal › Article
continuum modeling
Segregation
chutes
Continuum
Advection
Effect of pressure on segregation in granular shear flows
Fry, A. M., Umbanhowar, P., Ottino, J. M. & Lueptow, R. M., Jun 27 2018, In : Physical Review E. 97, 6, 062906.Research output: Contribution to journal › Article
Granular Flow
Segregation
Shear Flow
shear flow
beds
Persistent structures in a three-dimensional dynamical system with flowing and non-flowing regions
Zaman, Z., Yu, M., Park, P. P., Ottino, J. M., Lueptow, R. M. & Umbanhowar, P., Dec 1 2018, In : Nature communications. 9, 1, 3122.Research output: Contribution to journal › Article
dynamical systems
Dynamical systems
folding
Stretching
Fluids